/*
 * File      : pthread_internal.h
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006 - 2010, RT-Thread Development Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2010-10-26     Bernard      the first version
 */

#ifndef __PTHREAD_INTERNAL_H__
#define __PTHREAD_INTERNAL_H__

#include <rtthread.h>
#include <pthread.h>

struct _pthread_cleanup {
	void (*cleanup_func)(void* parameter);
	void* parameter;

	struct _pthread_cleanup* next;
};
typedef struct _pthread_cleanup _pthread_cleanup_t;

struct _pthread_key_data {
	int is_used;
	void (*destructor)(void* parameter);
};
typedef struct _pthread_key_data _pthread_key_data_t;

#define PTHREAD_MAGIC   0x70746873
struct _pthread_data {
	rt_uint32_t magic;
	pthread_attr_t attr;
	rt_thread_t tid;

	void* (*thread_entry)(void* parameter);
	void* thread_parameter;

	/* return value */
	void* return_value;

	/* semaphore for joinable thread */
	rt_sem_t joinable_sem;

	/* cancel state and type */
	rt_uint8_t cancelstate;
	volatile rt_uint8_t canceltype;
	volatile rt_uint8_t canceled;

	_pthread_cleanup_t* cleanup;
	void** tls; /* thread-local storage area */
};
typedef struct _pthread_data _pthread_data_t;

rt_inline _pthread_data_t* _pthread_get_data(pthread_t thread)
{
	_pthread_data_t* ptd;
	RT_ASSERT(thread != RT_NULL);

	ptd = (_pthread_data_t*)thread->user_data;
	RT_ASSERT(ptd != RT_NULL);
	RT_ASSERT(ptd->magic == PTHREAD_MAGIC);

	return ptd;
}

int clock_time_to_tick(const struct timespec* time);

void posix_mq_system_init(void);
void posix_sem_system_init(void);
void pthread_key_system_init(void);

#endif
